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Finding the Fourth Proportional to 279,467.75, 419,263.88 and 101,974.77

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Solution

The fourth proportional to 279,467.75, 419,263.88 and 101,974.77 is: 152,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,467.75 : 419,263.88 = 101,974.77 : x
  2. Step 2: Convert to fraction form
    279,467.75/419,263.88 = 101,974.77/x
  3. Step 3: Cross multiply
    279,467.75x = 419,263.88 × 101,974.77
  4. Step 4: Simplify right side
    279,467.75x = 42,754,337,222.43
  5. Step 5: Solve for x
    x = 42,754,337,222.43/279,467.75
  6. Step 6: Final answer
    x = 152,984.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.